Optimal weight and power parameters of crawler tractors to reduce pressure on the soil

[摘要] Crawler and wheeled vehicles are used in a variety of soil and climatic conditions. In the Krasnoyarsk region crawler tractors have a number of advantages. They have a higher traction efficiency, low fuel consumption, and low pressure on the soil. Reducing the pressure on the soil helps to preserve its structure and fertility. This fact is relevant for the agro-industrial complex of Siberia. At present, the vehicle fleet of general-purpose crawler tractors is being reduced. This is due not only to economic reasons, but also the lack of justification for their operation. The paper shows the optimal weight and power parameters. The use of triangular crawler track increases traction efficiency by 3.0% and significantly expands the traction range of effective use of the tractor. For tractors of 4 and 5 classes, the optimal range of change in operating power is 140...175 kW, it corresponds to the optimal range of change in weight 8.5...9.5 tons. For tractors of 5 and 6 classes, optimal interval of changing the operating power is 155...210 kW, it corresponds to the interval of weight change 10, 5...12, 0 tons. Regulation of operating parameters is produced with a change in the coefficient of engine adaptability from 1.2 to 1.4.

[效力级别] 生态环境科学